Today more and more children wear glasses before going to middle school. They keep their eyes watching TV or playing computer games for a long time. Eyes are the windows of our hearts (心). We use our eyes to see everything around us, so we should know how to protect our eyes.

    Love our eyes. When we open (睁开) our eyes every day, we can see the lovely friends and parents, beautiful flowers and green trees. If our eyes don't work, how can we see the world. In our eyes, everything and everywhere is dark. It's like a house with no light (光). How important our eyes are!

    Relax our eyes. First, stop to relax 30 minutes when using the computer for an hour or two. Next, remember to do eye exercises every day. Then, looking at green trees also helps a lot. In these ways, our eyes will feel relaxed.

    Have good habits. When writing homework and reading, it is important to keep a distance (距离) of 30 cm between your eyes and books. Remember to use our eyes in a right way. Don't read in bed or on a moving bus. Eat something healthy for eyes, such as carrots, fish and eggs.

    Follow my advice (建议) and get good habits. It's time to say goodbye to thick (厚的) glasses.

    Have you ever considered starting a fitness program? Since exercise can reduce the risk of diseases, improve balance, help lose weight, better sleep habits and even make you confident, you should start a fitness program in the following steps.

    Test your fitness level

How many meters can you walk or run in one minute? How much time does it take you to swim 50 meters? What is your heart rate (心率)? The data (数据) of your fitness level can help you know what activities you need.

    Design your fitness program

You may have begun your daily exercise. But a personal plan helps more. First, you should have your fitness goals (目标). For example, what do you want to look like, to be slimmer or quicker? A balanced plan will help you start low, progress slowly, do right activities and even allow you to recover (康复) if you get hurt.

    Prepare things needed for sports

You need something practical, enjoyable and easy to use. It could be a pair of trainers, a volleyball or a bicycle. You can also download fitness apps (应用程序) on your mobile phone to measure distances, calories burned or your heart rate.

    Take action

Now you're ready for action. When you begin, don't always try tough tasks. Listen to your body and reduce exercise time if necessary.

    Monitor your progress

Test your fitness level again six weeks later. If you have achieved your goals, increase exercise time to continue improving.

Starting an exercise program is an important decision. By planning carefully and acting step by step, you can have good health.

Music is good for us. According to the new study from the World Health Organization (WHO), music can 1 us happy and healthy. For example, when I feel 2 listening to some classical music helps me relax. When I'm down, I like pop music full of hope and love. It is easy for 3to fall asleep with light music. Some doctors 4 that people who love music may have a long life.

Near my house, a man and his wife have a small music house with mood music(情调音乐). People like to spend time here when 5are plying different kinds of music. Sometimes, we are lucky to hear some famous singers sing songs written by themselves. The songs are 6beautiful that we sing along with them. We communicate(交流)with one another 7 his special language. The most moving music is Chinese folk music(乡村音乐). It 8_us the sweet days in the past.

Everyone of us, rich or 9, young or old, may have his favorite song. 10 will be together with us as long as we live.

Every year, wildfires destroy millions of hectares of forest land. Homes are damaged, and thousands of people die. Smokejumpers help to stop this. 

Smokejumpers are a special type of firefighter. They jump from planes or are lowered by helicopters into areas that are 1 to reach by car or on foot, such as the middle of a mountain forest. They race to put out fires as fast as they can. 

At a fire site, smokejumpers first examine the land and decide 2 to fight the fire. Their main goal is to stop a fire from spreading or to slow its progress  3 ground—based firefighters arrive. Using basic equipment such as shovels (铲子) and axes(斧头), smokejumpers clear land of burnable material, like dry grass and dead trees. They carry water with them, too, but only a limited amount. 

Most smokejumpers are men. The most important factors are your height and  4 .Smokejumpers employed in the United States must be between 54 and 91 kilograms so they don't get blown away by the strong winds or get 5 when they land. 

The work is dangerous, and the hours are long. But for these firefighters, smoke jumping isn't just a job. They6 being able to jump out of planes, fight fires, and live in the forest. As 28-year-old Russian smokejumper Alexi says, "This is the best job for tough guys. "

Boys and girls, attention, please! 

Do you know 1 to keep safe in our daily（日常的）life? Today I'd like2 you some ways to keep safe. Always play in a 3 place. A park is a safe place4 there are no cars or buses in it. 

5 the traffic rules, please! Before crossing a road, 6 and look both ways ——look left, look right and look left 7 . 

Never put your head or hands 8 a car, a bus or a train. Many people get 9 or lose their lives by doing so. 

Don't 10 a stranger（陌生人）or go with him/her. 

That's all. All the students should obey the rules anytime(任何时候). 

As the weather gets warmer，there are few things that are better to do than travel．But traveling might not be that fun for everyone，especially for those who have motion sickness（晕动症）．

Motion sickness is also called travel sickness．It is a common experience for many people．Depending on how you travel，it can be called carsickness or seasickness．People with motion sickness feel very uncomfortable while they are in motion．They feel sick and dizzy，like the room around them won't stop spinning．

It is generally believed that motion sickness happens when your senses become confused （困惑的）with each other，Scientific American reported．

We use different parts of our body to sense movement．Our eyes tell us if we are moving．The inner ears （内耳） contain a special liquid that helps us sense our direction and balance．Our muscles react to movement．

When you move around，these body parts work well together．But when you are in a car or an airplane，they get confused．Your inner ear signals that you're moving．This mismatch gives us motion sickness．

But some people are less sensitive to motion sickness．This may be because they have certain genes （基因） that prevent mismatching senses，Bethann Hromatka，told the Atlantic．

Although there are many ways to deal with motion sickness，scientists believe that the key is to simply try to adapt to it．For example，some astronauts do special exercises that give them mild motion sickness．After a week or two，the astronauts become used to it and don't feel uncomfortable anymore，a NASA flight doctor，told the BBC．